The look on his face probably answers it before he says anything: heartbroken, and yet he can't help smiling. They have a son. A person exists in the world because long ago, a couple of old men thought Scully would be the perfect narc. No matter what else happens, he'll take that miracle to the grave with him. William is out there somewhere, and he's theirs.

"Legally speaking," he says, his throat tight, "I didn't have anything to do with it. But let's just say the Vatican didn't think it sounded like a miracle."